Mercurial > dropbear
view libtomcrypt/testprof/ecc_test.c @ 1653:76189c9ffea2
External Public-Key Authentication API (#72)
* Implemented dynamic loading of an external plug-in shared library to delegate public key authentication
* Moved conditional compilation of the plugin infrastructure into the configure.ac script to be able to add -ldl to dropbear build only when the flag is enabled
* Added tags file to the ignore list
* Updated API to have the constructor to return function pointers in the pliugin instance. Added support for passing user name to the checkpubkey function. Added options to the session returned by the plugin and have dropbear to parse and process them
* Added -rdynamic to the linker flags when EPKA is enabled
* Changed the API to pass a previously created session to the checkPubKey function (created during preauth)
* Added documentation to the API
* Added parameter addrstring to plugin creation function
* Modified the API to retrieve the auth options. Instead of having them as field of the EPKASession struct, they are stored internally (plugin-dependent) in the plugin/session and retrieved through a pointer to a function (in the session)
* Changed option string to be a simple char * instead of unsigned char *
author | fabriziobertocci <fabriziobertocci@gmail.com> |
---|---|
date | Wed, 15 May 2019 09:43:57 -0400 |
parents | f849a5ca2efc |
children |
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#include <tomcrypt_test.h> #ifdef LTC_MECC static int sizes[] = { #ifdef ECC112 14, #endif #ifdef ECC128 16, #endif #ifdef ECC160 20, #endif #ifdef ECC192 24, #endif #ifdef ECC224 28, #endif #ifdef ECC256 32, #endif #ifdef ECC384 48, #endif #ifdef ECC521 65 #endif }; #ifdef LTC_ECC_SHAMIR int ecc_test_shamir(void) { void *modulus, *mp, *kA, *kB, *rA, *rB; ecc_point *G, *A, *B, *C1, *C2; int x, y, z; unsigned char buf[ECC_BUF_SIZE]; DO(mp_init_multi(&kA, &kB, &rA, &rB, &modulus, NULL)); LTC_ARGCHK((G = ltc_ecc_new_point()) != NULL); LTC_ARGCHK((A = ltc_ecc_new_point()) != NULL); LTC_ARGCHK((B = ltc_ecc_new_point()) != NULL); LTC_ARGCHK((C1 = ltc_ecc_new_point()) != NULL); LTC_ARGCHK((C2 = ltc_ecc_new_point()) != NULL); for (x = 0; x < (int)(sizeof(sizes)/sizeof(sizes[0])); x++) { /* get the base point */ for (z = 0; ltc_ecc_sets[z].name; z++) { if (sizes[z] < ltc_ecc_sets[z].size) break; } LTC_ARGCHK(ltc_ecc_sets[z].name != NULL); /* load it */ DO(mp_read_radix(G->x, ltc_ecc_sets[z].Gx, 16)); DO(mp_read_radix(G->y, ltc_ecc_sets[z].Gy, 16)); DO(mp_set(G->z, 1)); DO(mp_read_radix(modulus, ltc_ecc_sets[z].prime, 16)); DO(mp_montgomery_setup(modulus, &mp)); /* do 100 random tests */ for (y = 0; y < 100; y++) { /* pick a random r1, r2 */ LTC_ARGCHK(yarrow_read(buf, sizes[x], &yarrow_prng) == sizes[x]); DO(mp_read_unsigned_bin(rA, buf, sizes[x])); LTC_ARGCHK(yarrow_read(buf, sizes[x], &yarrow_prng) == sizes[x]); DO(mp_read_unsigned_bin(rB, buf, sizes[x])); /* compute rA * G = A */ DO(ltc_mp.ecc_ptmul(rA, G, A, modulus, 1)); /* compute rB * G = B */ DO(ltc_mp.ecc_ptmul(rB, G, B, modulus, 1)); /* pick a random kA, kB */ LTC_ARGCHK(yarrow_read(buf, sizes[x], &yarrow_prng) == sizes[x]); DO(mp_read_unsigned_bin(kA, buf, sizes[x])); LTC_ARGCHK(yarrow_read(buf, sizes[x], &yarrow_prng) == sizes[x]); DO(mp_read_unsigned_bin(kB, buf, sizes[x])); /* now, compute kA*A + kB*B = C1 using the older method */ DO(ltc_mp.ecc_ptmul(kA, A, C1, modulus, 0)); DO(ltc_mp.ecc_ptmul(kB, B, C2, modulus, 0)); DO(ltc_mp.ecc_ptadd(C1, C2, C1, modulus, mp)); DO(ltc_mp.ecc_map(C1, modulus, mp)); /* now compute using mul2add */ DO(ltc_mp.ecc_mul2add(A, kA, B, kB, C2, modulus)); /* is they the sames? */ if ((mp_cmp(C1->x, C2->x) != LTC_MP_EQ) || (mp_cmp(C1->y, C2->y) != LTC_MP_EQ) || (mp_cmp(C1->z, C2->z) != LTC_MP_EQ)) { fprintf(stderr, "ECC failed shamir test: size=%d, testno=%d\n", sizes[x], y); return 1; } } mp_montgomery_free(mp); } ltc_ecc_del_point(C2); ltc_ecc_del_point(C1); ltc_ecc_del_point(B); ltc_ecc_del_point(A); ltc_ecc_del_point(G); mp_clear_multi(kA, kB, rA, rB, modulus, NULL); return 0; } #endif int ecc_tests (void) { unsigned char buf[4][4096]; unsigned long x, y, z, s; int stat, stat2; ecc_key usera, userb, pubKey, privKey; DO(ecc_test ()); DO(ecc_test ()); DO(ecc_test ()); DO(ecc_test ()); DO(ecc_test ()); for (s = 0; s < (sizeof(sizes)/sizeof(sizes[0])); s++) { /* make up two keys */ DO(ecc_make_key (&yarrow_prng, find_prng ("yarrow"), sizes[s], &usera)); DO(ecc_make_key (&yarrow_prng, find_prng ("yarrow"), sizes[s], &userb)); /* make the shared secret */ x = sizeof(buf[0]); DO(ecc_shared_secret (&usera, &userb, buf[0], &x)); y = sizeof(buf[1]); DO(ecc_shared_secret (&userb, &usera, buf[1], &y)); if (y != x) { fprintf(stderr, "ecc Shared keys are not same size."); return 1; } if (memcmp (buf[0], buf[1], x)) { fprintf(stderr, "ecc Shared keys not same contents."); return 1; } /* now export userb */ y = sizeof(buf[0]); DO(ecc_export (buf[1], &y, PK_PUBLIC, &userb)); ecc_free (&userb); /* import and make the shared secret again */ DO(ecc_import (buf[1], y, &userb)); z = sizeof(buf[0]); DO(ecc_shared_secret (&usera, &userb, buf[2], &z)); if (z != x) { fprintf(stderr, "failed. Size don't match?"); return 1; } if (memcmp (buf[0], buf[2], x)) { fprintf(stderr, "Failed. Contents didn't match."); return 1; } /* export with ANSI X9.63 */ y = sizeof(buf[1]); DO(ecc_ansi_x963_export(&userb, buf[1], &y)); ecc_free (&userb); /* now import the ANSI key */ DO(ecc_ansi_x963_import(buf[1], y, &userb)); /* shared secret */ z = sizeof(buf[0]); DO(ecc_shared_secret (&usera, &userb, buf[2], &z)); if (z != x) { fprintf(stderr, "failed. Size don't match?"); return 1; } if (memcmp (buf[0], buf[2], x)) { fprintf(stderr, "Failed. Contents didn't match."); return 1; } ecc_free (&usera); ecc_free (&userb); /* test encrypt_key */ DO(ecc_make_key (&yarrow_prng, find_prng ("yarrow"), sizes[s], &usera)); /* export key */ x = sizeof(buf[0]); DO(ecc_export(buf[0], &x, PK_PUBLIC, &usera)); DO(ecc_import(buf[0], x, &pubKey)); x = sizeof(buf[0]); DO(ecc_export(buf[0], &x, PK_PRIVATE, &usera)); DO(ecc_import(buf[0], x, &privKey)); for (x = 0; x < 32; x++) { buf[0][x] = x; } y = sizeof (buf[1]); DO(ecc_encrypt_key (buf[0], 32, buf[1], &y, &yarrow_prng, find_prng ("yarrow"), find_hash ("sha256"), &pubKey)); zeromem (buf[0], sizeof (buf[0])); x = sizeof (buf[0]); DO(ecc_decrypt_key (buf[1], y, buf[0], &x, &privKey)); if (x != 32) { fprintf(stderr, "Failed (length)"); return 1; } for (x = 0; x < 32; x++) { if (buf[0][x] != x) { fprintf(stderr, "Failed (contents)"); return 1; } } /* test sign_hash */ for (x = 0; x < 16; x++) { buf[0][x] = x; } x = sizeof (buf[1]); DO(ecc_sign_hash (buf[0], 16, buf[1], &x, &yarrow_prng, find_prng ("yarrow"), &privKey)); DO(ecc_verify_hash (buf[1], x, buf[0], 16, &stat, &pubKey)); buf[0][0] ^= 1; DO(ecc_verify_hash (buf[1], x, buf[0], 16, &stat2, &privKey)); if (!(stat == 1 && stat2 == 0)) { fprintf(stderr, "ecc_verify_hash failed %d, %d, ", stat, stat2); return 1; } ecc_free (&usera); ecc_free (&pubKey); ecc_free (&privKey); } #ifdef LTC_ECC_SHAMIR return ecc_test_shamir(); #else return 0; #endif } #else int ecc_tests(void) { fprintf(stderr, "NOP"); return 0; } #endif /* $Source$ */ /* $Revision$ */ /* $Date$ */